Not sure exactly about the ID, but I think its a 1967 Pannonia 250 Cross MC-67 ?? The 80 yr old man I bought it from did not know for sure, and his english was not clear..he was from Hungary. If anyone has any info I would love to know more. One thing I can not figure out is all these models have a red frame, but this one has a black frame and looks to be original paint on frame..Here are some pics.

I've only ever seen one Pannonia. It was back in the early 1970s and a school mate was given it as a non-runner by some old boy in his road.He never did get it going, and years later I read an article where they were dumped on the market by Pride and Clarke of London for ridiculously low prices.I can see why...don't know how well put together your bike is, but his was typical Commie-Bloc era rubbish.Maybe (like CZs) your comp bike is much better than the roadsters. I hope so for your sake...

I'm not sure it's actually a comp machine, probably just a modified roadster.

As Rex says, some of the East European competition bikes were super - I really liked the ISDT MZs. I was offered one cheap in the 70s but turned it down as I didn't (and still don't) like the left foot kickstart.

This bike is really amazing to me, it has advanced technology that the Japanese and USA bikes had no clue of at that time. It is amazing because they were racing these in motocross in Hungary and Czechs and all over Europe back in the 50's and 60's when in USA we didn't know what motocross was. So these engineers were ahead of us. This long stroke 2 stroke engine was faster and lighter than the 4 strokes, the bike has a removable sub frame like you find on modern bikes today, the seat comes off with 2 wing nuts, it has a real air box inside the frame, it has an up-pipe, tank comes off with 1 bolt, the purpose of the lights was so you could ride to the race track which was common in Europe in those days. This is also the bike that won the cherry creek Pro Motocross national in the USA back in 1966, or 67... I really love this Bike! I need to start restoring, and searching for parts.

Have some updated research on this Bike. It was designed by Jack White and made in Hungary by Pannonia at the Csepel Motor Works factory, then imported into the USA by White Motorcycle Company in 1965. My Bike is a " 1965 White 250 enduro " Only 10 were ever actually allowed to enter the USA due to the bike not being certified by the EPA laws here in the USA. I talked with an 82 year old Man about the White Motorcycle company history. Of the 10 allowed to come into USA 6 were 250cc motocross bikes, 2 were 250cc enduro's, and 2 were 125 enduro's. So my Bike is 1 of only 2 made.The other one is owned by the Man that purchased all the remaining bike's when the White Company went of business.From what I have learned White Company purchased 100 Bikes, but the USA government only allowed 10 into the country and the other 90 bikes were abandoned in storage for a few years and then destroyed.And of the 10 that were here the White Company never sold all of them while they were in business. Found some original ads that show the bike when new.br